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SA3P Implementation Tracker

This file is the persistent source of truth for implementation progress, decisions, and guardrails.

Guardrails

  • Keep this tracker updated at the start and end of each phase.
  • Never mark an item complete unless tests exist (or a written reason explains why tests are deferred).
  • Record design decisions immediately when made.
  • Keep work aligned to plan.md phase boundaries unless an explicit deviation is logged.

Status Legend

  • TODO
  • IN_PROGRESS
  • DONE
  • BLOCKED

Phase Board

  1. Plan hardening and acceptance criteria: DONE
  2. Workspace scaffold (4 crates + wiring): DONE
  3. Parser implementation + tests: DONE
  4. Engine implementation + tests: DONE
  5. Host backend implementation + tests: DONE
  6. Protocol implementation + tests: DONE
  7. End-to-end integration + validation: DONE
  8. Final documentation and handoff notes: DONE

Decisions Log

  • 2026-02-24: Use a Rust workspace with four crates: sa3p-parser, sa3p-engine, sa3p-host-impl, and sa3p-protocol.
  • 2026-02-24: Parser will support raw-body tags (write_file, search, replace, terminal) to avoid interpreting pseudo-tags in content.
  • 2026-02-24: Parser exposes both ParserEvent and protocol-ready Instruction output so write_file chunks can map 1:1 to protocol opcode 0x02.
  • 2026-02-24: Engine remains Sans-IO at the boundary by using VirtualFileSystem and TerminalProvider traits, with host-specific behavior implemented in sa3p-host-impl.
  • 2026-02-24: Binary frame format implemented as fixed header [MAGIC][STREAM_ID][OPCODE][PAYLOAD_LEN] plus payload, with incremental decoding via FrameCodec.

Work Log

  • 2026-02-24: Read README.md for philosophy context and plan.md for implementation scope.
  • 2026-02-24: Created persistent tracker (execution_tracker.md) with guardrails and phase board.
  • 2026-02-24: Added execution criteria to plan.md and scaffolded workspace crates.
  • 2026-02-24: Implemented sa3p-parser streaming parser with malformed/unbalanced handling and unit tests (cargo test -p sa3p-parser passing).
  • 2026-02-24: Implemented sa3p-engine core command execution, state headers, tiered apply_edit logic, and system prompt generation (cargo test -p sa3p-engine passing).
  • 2026-02-24: Implemented sa3p-host-impl local VFS and terminal providers with atomic writes, auto-chmod, ignore-aware listing, and timeout detachment/signal support (cargo test -p sa3p-host-impl passing).
  • 2026-02-24: Implemented sa3p-protocol binary framing/multiplexing plus instruction-to-frame mapping for WriteChunk -> 0x02 (cargo test -p sa3p-protocol passing).
  • 2026-02-24: Added end-to-end integration test (InstructionParser -> Engine -> Local host -> Protocol mapping) and validated full workspace (cargo test --workspace passing).
  • 2026-02-24: Replaced missing root README.md with public, self-contained open-source docs and added docs/ARCHITECTURE.md, docs/COMMANDS.md, and docs/PROTOCOL.md.
  • 2026-02-24: Added public docs/PUBLISHING.md release checklist and linked it from root README.md.
  • 2026-02-24: Added crates.io-oriented metadata/readmes to all crates, introduced scripts/release.sh automation (check, dry-run, publish), and validated the release pipeline with scripts/release.sh check and scripts/release.sh dry-run.
  • 2026-02-24: Configured workspace/crate homepage and repository metadata to the public GitHub URL (https://github.com/ccheshirecat/sa3p) and revalidated with scripts/release.sh check.
  • 2026-02-24: Published all crates to crates.io (sa3p-parser, sa3p-engine, sa3p-protocol, sa3p-host-impl) using guarded release automation.